package com.quick.common.util;

import cn.hutool.crypto.digest.DigestUtil;

public class PasswordUtil {
    private static final char[] arr={'a','b','c','d','e','f','0','1','2','3','4','5','6','7','8','9'};
    private static final int salt_index=5;
    private static final int count_index=15;
    public static String getEncryption(String password){
        //随机盐值
        int index_salt= (int) (Math.random()*arr.length);
        char salt=arr[index_salt];
        //随机加密次数
        int index_count= (int) (Math.random()*10);
        char count=arr[index_count];
        String encryptionPassword=password+salt;
        for (int i = 0; i < count; i++) {
            encryptionPassword=DigestUtil.md5Hex(encryptionPassword);
        }
        StringBuilder strb=new StringBuilder(encryptionPassword);
        strb.insert(salt_index,salt);
        strb.insert(count_index,count);
        return strb.toString();
    }

    public static boolean checkPassword(String password,String encryptionPassword){
        //获取盐值
        char salt=encryptionPassword.charAt(salt_index);
        //加密次数
        char count=encryptionPassword.charAt(count_index);
        String decode=password+salt;
        for (int i = 0; i < count; i++) {
            decode=DigestUtil.md5Hex(decode);
        }
        StringBuilder strb=new StringBuilder(decode);
        strb.insert(salt_index,salt);
        strb.insert(count_index,count);
        System.out.println(strb);
        return strb.toString().equals(encryptionPassword);
    }
    public Long getCurrentUserId() {
        // 实际项目中应从请求头的token中解析用户ID
        // 这里简化实现，实际需根据项目的认证逻辑实现
        // 修正方法名
        return null;
    }

}
